Analysis of machinability of Ti- and Ni-based alloys

被引:18
作者
Maurotto, Agostino [1 ]
Roy, Anish [1 ]
Babitsky, Vladimir I. [1 ]
Silberschmidt, Vadim V. [1 ]
机构
[1] Univ Loughborough, Wolfson Sch Mech & Mfg Engn, Loughborough, Leics, England
来源
ADVANCED MATERIALS AND STRUCTURES IV | 2012年 / 188卷
基金
英国工程与自然科学研究理事会;
关键词
Super-alloys; Ti alloys; Ni alloys; cutting forces; surface finish; ultrasonically assisted machining; PARAMETERS;
D O I
10.4028/www.scientific.net/SSP.188.330
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Efficient machining of advanced Ti- and Ni-based alloys, which are typically difficult-to-machine, is a challenge that needs to be addressed by the industry. During a typical machining operation of such alloys, high cutting forces imposed by a tool on the work-piece material lead to severe deformations in the process zone, along with high stresses, strains and temperatures in the material, eventually affecting the quality of finished work-piece. Conventional machining (CT) of Ti- and Ni-based alloys is typically characterized by low depths of cuts and relatively low feed rates, thus adversely affecting the material removal rates (MRR) in the machining process. In the present work, a novel machining technique, known as Ultrasonically Assisted Turning (UAT) is shown to dramatically improve machining of these intractable alloys. The developed machining process is capable of high MRR with an improved surface quality of the turned work-piece. Average cutting forces are significantly lower in UAT when compared to those in traditional turning techniques at the same machining parameters, demonstrating the capability of vibration-assisted machining as a viable machining method for the future.
引用
收藏
页码:330 / 338
页数:9
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